FR2947027A1 - MOVEMENT TRANSFORMATION DEVICE AND VALVE HAVING SUCH A DEVICE - Google Patents

MOVEMENT TRANSFORMATION DEVICE AND VALVE HAVING SUCH A DEVICE Download PDF

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Publication number
FR2947027A1
FR2947027A1 FR0902946A FR0902946A FR2947027A1 FR 2947027 A1 FR2947027 A1 FR 2947027A1 FR 0902946 A FR0902946 A FR 0902946A FR 0902946 A FR0902946 A FR 0902946A FR 2947027 A1 FR2947027 A1 FR 2947027A1
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FR
France
Prior art keywords
valve
toothed wheel
slider
slide
tubular wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR0902946A
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French (fr)
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FR2947027B1 (en
Inventor
Laurent Albert
Gabriel Ridolfi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Systemes de Controle Moteur SAS
Original Assignee
Valeo Systemes de Controle Moteur SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to FR0902946A priority Critical patent/FR2947027B1/en
Application filed by Valeo Systemes de Controle Moteur SAS filed Critical Valeo Systemes de Controle Moteur SAS
Priority to US13/378,373 priority patent/US8752808B2/en
Priority to JP2012515495A priority patent/JP5536881B2/en
Priority to PL10723622T priority patent/PL2443334T3/en
Priority to EP10723622.6A priority patent/EP2443334B1/en
Priority to KR1020127001245A priority patent/KR101699108B1/en
Priority to CN201080036464.8A priority patent/CN102483015B/en
Priority to PCT/EP2010/058547 priority patent/WO2010146120A1/en
Priority to ES10723622.6T priority patent/ES2468792T3/en
Publication of FR2947027A1 publication Critical patent/FR2947027A1/en
Application granted granted Critical
Publication of FR2947027B1 publication Critical patent/FR2947027B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/52Systems for actuating EGR valves
    • F02M26/53Systems for actuating EGR valves using electric actuators, e.g. solenoids
    • F02M26/54Rotary actuators, e.g. step motors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65Constructional details of EGR valves
    • F02M26/66Lift valves, e.g. poppet valves
    • F02M26/67Pintles; Spindles; Springs; Bearings; Sealings; Connections to actuators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H25/00Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/186Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions with reciprocation along the axis of oscillation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/52Mechanical actuating means with crank, eccentric, or cam
    • F16K31/524Mechanical actuating means with crank, eccentric, or cam with a cam
    • F16K31/52475Mechanical actuating means with crank, eccentric, or cam with a cam comprising a sliding valve
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/52Mechanical actuating means with crank, eccentric, or cam
    • F16K31/528Mechanical actuating means with crank, eccentric, or cam with pin and slot
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/52Mechanical actuating means with crank, eccentric, or cam
    • F16K31/528Mechanical actuating means with crank, eccentric, or cam with pin and slot
    • F16K31/5286Mechanical actuating means with crank, eccentric, or cam with pin and slot comprising a sliding valve
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/53Mechanical actuating means with toothed gearing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/45Sensors specially adapted for EGR systems
    • F02M26/48EGR valve position sensors
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/18Mechanical movements
    • Y10T74/18056Rotary to or from reciprocating or oscillating
    • Y10T74/18296Cam and slide
    • Y10T74/18304Axial cam
    • Y10T74/18312Grooved

Abstract

Le dispositif de transformation d'un mouvement de rotation d'une roue dentée (5) en un mouvement de translation d'un coulisseau (2, 8), le dispositif comprenant un organe support (9) muni d'une paroi tubulaire (10) fixe liée en translation au coulisseau (2, 8) par un chemin de came (11), la roue dentée (5) étant montée à rotation sur l'organe support (9) et étant liée en rotation au coulisseau (2, 8) qui est adapté à pivoter autour d' un axe. La roue dentée (5) comporte une bague (15) montée à rotation sur la paroi tubulaire (10) de l'organe support (9).The device for transforming a rotational movement of a toothed wheel (5) into a translation movement of a slide (2, 8), the device comprising a support member (9) provided with a tubular wall (10) ) fixed in translation to the slider (2, 8) by a cam path (11), the toothed wheel (5) being rotatably mounted on the support member (9) and being rotatably connected to the slider (2, 8 ) which is adapted to pivot about an axis. The toothed wheel (5) comprises a ring (15) rotatably mounted on the tubular wall (10) of the support member (9).

Description

Dispositif de transformation de mouvement et vanne comportant un tel dispositif Motion transformation device and valve comprising such a device

L'invention concerne un dispositif de transformation d'un mouvement de rotation d'une roue dentée en un mouvement de translation d'un coulisseau et une vanne comportant un tel dispositif. Une vanne de ce type est par exemple utilisable dans un circuit de recirculation de gaz d'échappement d'un moteur thermique de véhicule automobile. The invention relates to a device for transforming a rotational movement of a toothed wheel in a translational movement of a slide and a valve comprising such a device. A valve of this type is for example usable in an exhaust gas recirculation circuit of a motor vehicle engine.

ARRIERE PLAN DE L'INVENTION Le document FR 2 914 975 décrit un tel dispositif de transformation de mouvement et son application à une vanne de recirculation EGR . Les systèmes de recirculation de gaz d'échappement sont connus sous la dénomination EGR pour Exhaust Gaz Recirculation et permettent de réinjecter des gaz d'échappement à l'admission d'un moteur à explosion pour notamment réduire les émissions polluantes. OBJET DE L'INVENTION L'invention a pour but de réduire le coût et l'encombrement d'un tel dispositif. BREVE DESCRIPTION DE L'INVENTION A cet effet, l'invention vise un dispositif de transformation d'un mouvement de rotation d'une roue dentée en un mouvement de translation d'un coulisseau, le dispositif comprenant un organe support muni d'une paroi tubulaire fixe liée en translation au coulisseau par un chemin de came, la roue dentée étant montée à rotation sur l'organe support et étant liée en rotation au coulisseau qui est adapté à pivoter autour d'un axe, caractérisé en ce que la roue dentée comporte une bague montée à rotation sur la paroi tubulaire de l'organe support. Dans un tel dispositif de transformation, la roue dentée est mise en position directement sur la paroi tubulaire ce qui garanti une meilleure coaxialité entre ces deux éléments. Il n'est alors pas nécessaire de coiffer l'organe support d'un pivot, ce qui rend le dispositif plus compact et plus simple à réaliser. L'organe support peut ainsi comporter un simple cylindre assurant la fonction de paroi tubulaire. BACKGROUND OF THE INVENTION Document FR 2 914 975 describes such a device for transforming movement and its application to an EGR recirculation valve. Exhaust gas recirculation systems are known by the name EGR for Exhaust Gas Recirculation and allow to reinject exhaust gases at the intake of a combustion engine to reduce emissions. OBJECT OF THE INVENTION The object of the invention is to reduce the cost and the bulk of such a device. BRIEF DESCRIPTION OF THE INVENTION To this end, the invention provides a device for transforming a rotational movement of a toothed wheel into a translation movement of a slide, the device comprising a support member provided with a wall. fixed tubular translationally connected to the slide by a cam path, the toothed wheel being rotatably mounted on the support member and being rotatably connected to the slide which is adapted to pivot about an axis, characterized in that the toothed wheel comprises a ring rotatably mounted on the tubular wall of the support member. In such a conversion device, the toothed wheel is placed in position directly on the tubular wall, which guarantees a better coaxiality between these two elements. It is then not necessary to cap the support member of a pivot, which makes the device more compact and simpler to achieve. The support member may thus comprise a single cylinder providing the tubular wall function.

La roue dentée peut comporter une ouverture centrale d'accès au coulisseau. Une telle ouverture centrale permet de loger des organes de manière plus compacte dans le dispositif. Par exemple, un capteur de position, qu'il soit rotatif ou linéaire, peut être logé dans l'ouverture centrale sans augmenter l'encombrement sur le dessus de l'organe support. Le dispositif peut en outre comporter les caractéristiques suivantes, seules ou en combinaison : - l'ouverture centrale peut donner accès à une portion du coulisseau située le long de son axe de pivotement ; - La roue dentée peut comporter un logement d'entraînement en rotation du coulisseau ; - le logement d'entraînement peut être défini par 20 deux parois longitudinales s'étendant parallèlement à la direction de translation du coulisseau ; - la roue dentée peut comporter une jupe dans le prolongement de la bague, les parois longitudinales étant rattachées à la jupe ; 25 - la bague peut être montée à rotation sur la paroi tubulaire par l'intermédiaire d'un roulement ; - la paroi tubulaire peut comporter un lamage pour le montage du roulement ; - la bague et la roue dentée peuvent être 30 coaxiales. Un autre objet de l'invention vise une vanne comportant un actionneur rotatif et une soupape reliés ensemble par un dispositif de transformation de mouvement de sorte que l'actionneur soit adapté à fermer et ouvrir la 35 soupape, le dispositif de transformation de mouvement étant tel que décrit ci-dessus et la soupape faisant partie du coulisseau. La vanne peut comporter les caractéristiques suivantes, seules ou en combinaison : - l'ouverture centrale peut donner accès à une 5 portion du coulisseau située le long de l'axe suivant lequel s'étend la queue de la soupape ; - le coulisseau peut comporter une soupape et un barreau fixé transversalement à la queue de la soupape ; - la queue de la soupape peut être fixée dans un 10 trou traversant du barreau, la roue dentée peut comporter une ouverture centrale d'accès direct à la queue de la soupape ; - elle peut comporter un capteur de la position de la soupape disposé dans l'ouverture centrale 15 - elle peut également comporter un capot de protection, le capteur étant monté sur la face interne de ce capot. BREVE DESCRIPTION DES DESSINS L'invention sera mieux comprise à la lumière de la 20 description qui va suivre d'un mode de réalisation préféré et non limitatif, description faite en référence aux dessins annexés, parmi lesquels : - la figure 1 représente en perspective une vanne comportant un dispositif de transformation de mouvement 25 selon l'invention, ce dernier étant représenté en coupe partielle ; - la figure 2 est une vue en perspective avec coupe partielle du dispositif de transformation de mouvement de la figure 1 ; 30 - la figure 3 est une vue de détail en coupe de la figure 2 ; - la figure 4 est une vue de dessus du dispositif de la figure 2 ; - la figure 5 est une vue partielle en coupe de la 35 vanne de la figure 1 coiffée d'un capot. DESCRIPTION DETAILLEE DE L'INVENTION La figure 1 représente une vanne 1 qui est dans le présent exemple une vanne de recirculation de gaz d'échappement dont la fonction est classique. La vanne 1 comporte une soupape 2 qui permet l'introduction et le dosage d'un fluide, ici les gaz d'échappement, dans une canalisation, ici d'admission. Une telle vanne 1 comporte un moteur 3 engrenant avec une roue de transmission 4 qui elle-même engrène avec une roue dentée 5. Le moteur 3 est ainsi adapté à entraîner en rotation la roue dentée 5. Le mouvement de rotation de cette roue dentée 5 est par ailleurs transformé en mouvement de translation de la soupape 2 grâce à un dispositif de transformation de mouvements 6. Le dispositif 6 comporte à cet effet d'un organe support 9 muni de paliers 7 pour le guidage longitudinal de la queue de la soupape 2. L'organe support 9 comporte une paroi tubulaire 10 munie d'un chemin de came 11 avec lequel coopère un barreau 8 fixé à l'extrémité de la queue de la soupape 2 (par goupillage, emmanchement en force, soudure, ou tout autre moyen de fixation). Le chemin de came 11 est ici formé de deux pistes de part et d'autre de la paroi tubulaire 10 (voir figure 2), étant entendu qu'il peut en comporter un quelconque nombre adapté. Il peut ainsi ne comporter qu'une seule piste ou un nombre supérieur à deux. The gear wheel may comprise a central access opening to the slider. Such a central opening makes it possible to house organs in a more compact manner in the device. For example, a position sensor, whether rotary or linear, can be housed in the central opening without increasing the bulk on the top of the support member. The device may further comprise the following characteristics, alone or in combination: the central opening may give access to a portion of the slide located along its pivot axis; - The toothed wheel may comprise a drive housing in rotation of the slider; the drive housing may be defined by two longitudinal walls extending parallel to the direction of translation of the slide; - The toothed wheel may comprise a skirt in the extension of the ring, the longitudinal walls being attached to the skirt; The ring can be rotatably mounted on the tubular wall by means of a bearing; the tubular wall may comprise a countersink for mounting the bearing; the ring and the toothed wheel may be coaxial. Another object of the invention is a valve comprising a rotary actuator and a valve connected together by a motion transformation device so that the actuator is adapted to close and open the valve, the motion transformation device being such described above and the valve part of the slider. The valve may comprise the following characteristics, alone or in combination: the central opening may give access to a portion of the slider located along the axis along which the tail of the valve extends; the slide may comprise a valve and a bar fixed transversely to the tail of the valve; the stem of the valve can be fixed in a through-hole of the bar, the toothed wheel can comprise a central opening with direct access to the tail of the valve; it may comprise a sensor of the position of the valve disposed in the central opening; it may also comprise a protective cover, the sensor being mounted on the internal face of this cover. BRIEF DESCRIPTION OF THE DRAWINGS The invention will be better understood in the light of the following description of a preferred and nonlimiting embodiment, a description given with reference to the appended drawings, in which: FIG. valve comprising a movement transformation device 25 according to the invention, the latter being shown in partial section; FIG. 2 is a partial sectional perspective view of the motion transformation device of FIG. 1; Figure 3 is a detail sectional view of Figure 2; FIG. 4 is a view from above of the device of FIG. 2; - Figure 5 is a partial sectional view of the valve of Figure 1 covered with a cover. DETAILED DESCRIPTION OF THE INVENTION FIG. 1 shows a valve 1 which is in the present example an exhaust gas recirculation valve whose function is conventional. The valve 1 comprises a valve 2 which allows the introduction and dosing of a fluid, here the exhaust gas, in a pipe, here intake. Such a valve 1 comprises a motor 3 meshing with a transmission wheel 4 which itself meshes with a toothed wheel 5. The motor 3 is thus adapted to rotate the toothed wheel 5. The rotational movement of this toothed wheel 5 is furthermore transformed into translational movement of the valve 2 by means of a device for transforming movements 6. The device 6 comprises for this purpose a support member 9 provided with bearings 7 for the longitudinal guiding of the tail of the valve 2 The support member 9 comprises a tubular wall 10 provided with a cam path 11 with which a bar 8 connected to the end of the tail of the valve 2 cooperates (by pinning, press fitting, welding, or any other means of fixation). The cam path 11 is here formed of two tracks on either side of the tubular wall 10 (see Figure 2), it being understood that it may comprise any suitable number. It can thus comprise only one track or a number greater than two.

Ce barreau 8 est muni à chacune de ses extrémités d'un galet 12 coopérant avec le chemin de came 11 de sorte que, lorsque la roue dentée est entraînée en rotation, celle-ci entraîne à son tour le barreau 8 en rotation provocant, grâce au parcours du galet 12 dans le chemin de came 11, la translation de la soupape 2. La soupape 2 et le barreau 8 sont fixes l'un par rapport à l'autre et forment ensemble un coulisseau dont le déplacement en translation répond à la rotation de la roue dentée 5. D'autres éléments qui seraient rigidement liés à la soupape 2 feraient également partie du coulisseau. La vanne 1 comporte de plus un capteur linéaire 13 permettant de rendre compte de la position longitudinale de la soupape 2. La figure 2 montre l'organe support 9 isolé de la vanne 1. This bar 8 is provided at each of its ends with a roller 12 cooperating with the cam path 11 so that, when the toothed wheel is rotated, the latter in turn drives the bar 8 in provocative rotation, thanks to the path of the roller 12 in the cam path 11, the translation of the valve 2. The valve 2 and the bar 8 are fixed relative to each other and together form a slide whose translational movement meets the rotation of the gear wheel 5. Other elements that would be rigidly connected to the valve 2 would also be part of the slider. The valve 1 further comprises a linear sensor 13 making it possible to account for the longitudinal position of the valve 2. FIG. 2 shows the support member 9 isolated from the valve 1.

La roue dentée 5 comporte une portion dentée 14 permettant l'engrènement avec la roue de transmission 4. Cette portion dentée ne s'étend dans le présent exemple que sur un secteur angulaire correspondant à la course linéaire requise pour la soupape 2. La portion dentée peut bien entendu s'étendre sur un secteur angulaire différent, voire sur tout le pourtour de la roue dentée si nécessaire, en fonction de la plage dans laquelle le coulisseau 2, 8 est prévu pour se translater. La roue dentée 5 comporte également une bague 15 qui s'étend dans la direction de l'axe de rotation de la roue dentée 5 de sorte que cette bague 15 forme une portion tubulaire de montage. La bague 15 est coaxiale à l'axe de rotation de la roue dentée 5. La roue dentée 5 est montée à rotation sur l'organe support 9 grâce à l'ajustement de la bague 15 sur la bague interne d'un roulement 16 dont la bague externe est quant à elle ajustée sur la paroi tubulaire 10 de l'organe support 9. Le roulement 16 est représenté schématiquement sur les figures. Plus précisément, dans le présent exemple, la paroi tubulaire 10 comporte un lamage 17 dans lequel le roulement 16 prend place. Le profil optimal de la liaison entre la paroi tubulaire 10 et le roulement 16 est représenté, pour cet exemple, sur la coupe de la figure 3. Le lamage 17 permet l'appui de la bague extérieure du roulement 16 tandis qu'un dégagement 18 sépare la paroi tubulaire 10 du reste du roulement 16 pour éviter les frottements parasites. La roue dentée 5 est ainsi montée tournante sur la paroi tubulaire 10 par l'intermédiaire du roulement 16 de sorte que la rotation de la portion dentée 14 se fasse coaxialement à la direction de translation de la soupape 2. The toothed wheel 5 comprises a toothed portion 14 allowing meshing with the transmission wheel 4. This toothed portion extends in the present example only on an angular sector corresponding to the linear stroke required for the valve 2. The toothed portion can of course extend over a different angular sector, or even around the entire periphery of the toothed wheel if necessary, depending on the range in which the slide 2, 8 is provided to translate. The toothed wheel 5 also comprises a ring 15 which extends in the direction of the axis of rotation of the toothed wheel 5 so that the ring 15 forms a tubular mounting portion. The ring 15 is coaxial with the axis of rotation of the toothed wheel 5. The toothed wheel 5 is rotatably mounted on the support member 9 by adjusting the ring 15 on the inner ring of a bearing 16 of which the outer ring is in turn adjusted to the tubular wall 10 of the support member 9. The bearing 16 is shown schematically in the figures. More specifically, in the present example, the tubular wall 10 comprises a countersink 17 in which the bearing 16 takes place. The optimal profile of the connection between the tubular wall 10 and the bearing 16 is shown, for this example, on the section of Figure 3. The countersink 17 allows the support of the outer ring of the bearing 16 while a clearance 18 separates the tubular wall 10 from the rest of the bearing 16 to avoid parasitic friction. The toothed wheel 5 is thus rotatably mounted on the tubular wall 10 by means of the bearing 16 so that the rotation of the toothed portion 14 is coaxial with the direction of translation of the valve 2.

En variante, le roulement 16 peut être remplacé par un autre type de liaison pivot, un palier ou une bague à faible coefficient de friction, par exemple. La bague 15 de la roue dentée 5 peut également être montée directement sur la paroi tubulaire 10 si les matériaux employés, éventuellement_ avec un traitement de surface ou un revêtement, présentent un coefficient de friction adéquat. La bague 15 de la roue dentée 5 se prolonge par une jupe 19 prévue pour coopérer avec le barreau 8. Cette jupe 19 comporte deux parois longitudinales 20 parallèles entre elles et s'étendant parallèlement à la direction de translation de la soupape 2. Les deux surfaces longitudinales 20 définissent entre elles un logement 21 pour le barreau 8 (voir figure 4). Ainsi, le barreau 8 est disposé dans le logement 21 de sorte que la roue dentée 5 soit apte à entraîner en rotation le barreau 8 par l'intermédiaire des parois longitudinales 20, et que le barreau 8 soit libre de coulisser dans le logement 21 dans la direction de translation de la soupape 2. Alternatively, the bearing 16 may be replaced by another type of pivot connection, a bearing or a low-friction ring, for example. The ring 15 of the toothed wheel 5 can also be mounted directly on the tubular wall 10 if the materials used, optionally with a surface treatment or a coating, have an adequate coefficient of friction. The ring 15 of the toothed wheel 5 is extended by a skirt 19 provided to cooperate with the bar 8. This skirt 19 comprises two longitudinal walls 20 parallel to each other and extending parallel to the direction of translation of the valve 2. Both longitudinal surfaces 20 define between them a housing 21 for the bar 8 (see Figure 4). Thus, the bar 8 is disposed in the housing 21 so that the toothed wheel 5 is able to rotate the bar 8 through the longitudinal walls 20, and the bar 8 is free to slide in the housing 21 in the direction of translation of the valve 2.

Par conséquent, au sein de la vanne 1, la rotation de la roue dentée 5 entraîne la rotation du barreau 8 dont les galets 12 roulent alors sur le chemin de came 11 fixe (car l'organe support 9 est fixe par rapport à la roue dentée 5 et au coulisseau 2, 8) ce qui entraîne conjointement la translation du coulisseau 2, 8 dans le sens d'ouverture ou de fermeture de la soupape 2. La roue dentée 5 comporte également une ouverture centrale 23 d'accès au coulisseau 2, 8. Le volume interne de la bague 15 est ici creux et est ainsi mis à profit pour constituer un espace libre permettant d'y installer des composants supplémentaires utiles au fonctionnement de la vanne 1. De plus, cet espace libre donne accès par le dessus au coulisseau 2, 8, ce qui permet d'y installer des composant prévus par exemple pour coopérer avec la queue de la soupape 2 ou le barreau 8. Dans le présent exemple, cet espace libre est mis à profit pour installer un capteur 13. En référence aux figures 1 et 5, la vanne 1 comporte en effet un capteur 13 de la position en translation de la soupape 2. La position du coulisseau 2, 8 (dont fait ici partie la soupape 2) est, dans le présent exemple, relevée grâce à un capteur de position linéaire classique. Un exemple de capteur de position linéaire est donné dans le document EP1503181. Tout type de capteur permettant de relever la position du coulisseau 2, 8 peut être employé. Le capteur 13 du présent exemple comporte une tige de guidage 22 sur laquelle coulisse un cylindre 24 qui est rattaché à un palpeur 25 maintenu au contact de la queue de soupape par un ressort 26. Le palpeur 25 suit les mouvements de va et vient de la soupape 2 tandis qu'un dispositif de mesure 27, comportant généralement une sonde à effet Hall (voir document EP1503181), fourni un signal représentatif de la position linéaire du palpeur 15 et donc de la soupape 2. Le dispositif de mesure 27, la tige de guidage 22 (avec les éléments qui y sont reliés) sont fixés sous le capot 28 qui est représenté figure 5 et qui permet par ailleurs de protéger les différents organes de la vanne 1. Grâce au logement 21, la pose d'un tel capteur 13 se fait sans augmentation sensible de l'encombrement de la vanne. Des variantes de réalisation de l'invention pourront être envisagées sans sortir du cadre de l'invention. Notamment, les parois longitudinales 20 peuvent avoir une forme alternative, elles peuvent être réalisées selon une quelconque forme permettant d'entraîner en rotation le barreau 8 lors de la rotation de la roue dentée 5. Therefore, within the valve 1, the rotation of the toothed wheel 5 causes the rotation of the bar 8 whose rollers 12 then roll on the fixed cam path 11 (because the support member 9 is fixed relative to the wheel toothed 5 and the slider 2, 8) which together causes the translation of the slider 2, 8 in the opening or closing direction of the valve 2. The toothed wheel 5 also comprises a central opening 23 for access to the slider 2 8. The internal volume of the ring 15 is here hollow and is thus used to provide a free space for installing additional components useful for the operation of the valve 1. In addition, this free space gives access to the on the slide 2, 8, which allows to install components provided for example to cooperate with the tail of the valve 2 or the bar 8. In this example, this free space is used to install a sensor 13 With reference to Figures 1 and 5 , the valve 1 comprises indeed a sensor 13 of the position in translation of the valve 2. The position of the slider 2, 8 (which here is the valve 2 part) is, in this example, taken up by a position sensor linear classic. An example of a linear position sensor is given in EP1503181. Any type of sensor for raising the position of the slider 2, 8 can be used. The sensor 13 of the present example comprises a guide rod 22 on which slides a cylinder 24 which is attached to a feeler 25 held in contact with the valve stem by a spring 26. The feeler 25 follows the movements back and forth of the valve 2 while a measuring device 27, generally comprising a Hall effect probe (see EP1503181), provides a signal representative of the linear position of the probe 15 and therefore of the valve 2. The measuring device 27, the rod 22 (with the elements connected thereto) are fixed under the cover 28 which is shown in FIG. 5 and which also makes it possible to protect the different members of the valve 1. Thanks to the housing 21, the installation of such a sensor 13 is done without significant increase in the size of the valve. Alternative embodiments of the invention may be envisaged without departing from the scope of the invention. In particular, the longitudinal walls 20 may have an alternative shape, they may be made in any shape to rotate the bar 8 during rotation of the toothed wheel 5.

Claims (15)

REVENDICATIONS1. Dispositif de transformation d'un mouvement de rotation d'une roue dentée (5) en un mouvement de translation d'un coulisseau (2, 8), le dispositif comprenant un organe support (9) muni d'une paroi tubulaire (10) fixe liée en translation au coulisseau (2, 8) par un chemin de came (11), la roue dentée (5) étant montée à rotation sur l'organe support (9) et étant liée en rotation au coulisseau (2, 8) qui est adapté à pivoter autour d'un axe, caractérisé en ce que la roue dentée (5) comporte une bague (15) montée à rotation sur la paroi tubulaire (10) de l'organe support (9). REVENDICATIONS1. Device for transforming a rotational movement of a toothed wheel (5) into a translation movement of a slide (2, 8), the device comprising a support member (9) provided with a tubular wall (10) fixed in translation to the slide (2, 8) by a cam path (11), the toothed wheel (5) being rotatably mounted on the support member (9) and being rotatably connected to the slide (2, 8) which is adapted to pivot about an axis, characterized in that the toothed wheel (5) comprises a ring (15) rotatably mounted on the tubular wall (10) of the support member (9). 2. Dispositif selon la revendication 1, dans lequel 15 la roue dentée (5) comporte une ouverture centrale (23) d'accès au coulisseau (2, 8). 2. Device according to claim 1, wherein the toothed wheel (5) has a central aperture (23) for access to the slider (2, 8). 3. Dispositif selon la revendication 2, dans lequel l'ouverture centrale (23) donne accès à une portion du coulisseau (2, 8) située le long de son axe de pivotement. 20 3. Device according to claim 2, wherein the central opening (23) provides access to a portion of the slider (2, 8) located along its pivot axis. 20 4. Dispositif selon l'une des revendications 1 à 3, dans lequel la roue dentée (5) comporte un logement (21) d'entraînement en rotation du coulisseau (2, 8). 4. Device according to one of claims 1 to 3, wherein the toothed wheel (5) comprises a housing (21) for rotating the slider (2, 8). 5. Dispositif selon la revendication 4, dans lequel le logement d'entraînement (21) est défini par deux parois 25 longitudinales (20) s'étendant parallèlement à la direction de translation du coulisseau (2, 8). 5. Device according to claim 4, wherein the drive housing (21) is defined by two longitudinal walls (20) extending parallel to the direction of translation of the slider (2, 8). 6. Dispositif selon la revendication 5, dans lequel la roue dentée (5) comporte une jupe (19) dans le prolongement de la bague (15), les parois longitudinales 30 (20) étant rattachées à la jupe (19). 6. Device according to claim 5, wherein the toothed wheel (5) has a skirt (19) in the extension of the ring (15), the longitudinal walls 30 (20) being attached to the skirt (19). 7. Dispositif selon l'une des revendications 1 à 6, dans lequel la bague (15) est montée à rotation sur la paroi tubulaire (10) par l'intermédiaire d'un roulement (16). 35 7. Device according to one of claims 1 to 6, wherein the ring (15) is rotatably mounted on the tubular wall (10) by means of a bearing (16). 35 8. Dispositif selon la revendication 7, dans lequel la paroi tubulaire (10) comporte un lamage (17) pour lemontage du roulement (16). 8. Device according to claim 7, wherein the tubular wall (10) comprises a countersink (17) for the mounting of the bearing (16). 9. Dispositif selon l'une des revendications 1 à 8, dans lequel la bague (15) et la roue dentée (5) sont coaxiales. 9. Device according to one of claims 1 to 8, wherein the ring (15) and the toothed wheel (5) are coaxial. 10. Vanne (1) comportant un actionneur rotatif (3) et une soupape (2) reliés ensemble par un dispositif de transformation de mouvement de sorte que l'actionneur (3) soit adapté à fermer et ouvrir la soupape (2), caractérisé en ce que le dispositif de transformation de mouvement est conforme à l'une des revendications 1 à 9, la soupape (2) faisant partie du coulisseau (2, 8). Valve (1) comprising a rotary actuator (3) and a valve (2) connected together by a motion-transforming device so that the actuator (3) is adapted to close and open the valve (2), characterized in that the motion transformation device is according to one of claims 1 to 9, the valve (2) forming part of the slide (2, 8). 11. Vanne selon la revendication 10, dans laquelle l'ouverture centrale (23) donne accès à une portion du coulisseau (2, 8) située le long de l'axe suivant lequel s'étend la queue de la soupape (2). 11. Valve according to claim 10, wherein the central opening (23) gives access to a portion of the slider (2, 8) located along the axis along which extends the tail of the valve (2). 12. Vanne selon la revendication 11, dans laquelle le coulisseau comporte la soupape (2) et un barreau (8) fixé transversalement à la queue de la soupape (2). 12. Valve according to claim 11, wherein the slide comprises the valve (2) and a bar (8) fixed transversely to the tail of the valve (2). 13. Vanne selon la revendication 12, dans laquelle la queue de la soupape (2) est fixée dans un trou traversant du barreau (8), et dans laquelle la roue dentée (5) comporte une ouverture centrale (23) d'accès direct à la queue de la soupape (2). 13. Valve according to claim 12, wherein the tail of the valve (2) is fixed in a through hole of the bar (8), and wherein the toothed wheel (5) has a central opening (23) direct access at the tail of the valve (2). 14. Vanne selon la revendication 13, comportant en 25 outre un capteur (13) de la position de la soupape (2) disposé dans l'ouverture centrale (23). Valve according to claim 13, further comprising a sensor (13) of the position of the valve (2) disposed in the central opening (23). 15. Vanne selon la revendication 14, comportant en outre un capot de protection (28), le capteur (13) étant monté sur la face interne du capot (28). 30 15. Valve according to claim 14, further comprising a protective cover (28), the sensor (13) being mounted on the inner face of the cover (28). 30
FR0902946A 2009-06-17 2009-06-17 MOVEMENT TRANSFORMATION DEVICE AND VALVE HAVING SUCH A DEVICE Expired - Fee Related FR2947027B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR0902946A FR2947027B1 (en) 2009-06-17 2009-06-17 MOVEMENT TRANSFORMATION DEVICE AND VALVE HAVING SUCH A DEVICE
JP2012515495A JP5536881B2 (en) 2009-06-17 2010-06-17 Motion conversion device and valve
PL10723622T PL2443334T3 (en) 2009-06-17 2010-06-17 Movement transformation device and valve comprising such a device
EP10723622.6A EP2443334B1 (en) 2009-06-17 2010-06-17 Movement transformation device and valve comprising such a device
US13/378,373 US8752808B2 (en) 2009-06-17 2010-06-17 Movement transformation device and valve comprising such a device
KR1020127001245A KR101699108B1 (en) 2009-06-17 2010-06-17 Movement transformation device and valve comprising such a device
CN201080036464.8A CN102483015B (en) 2009-06-17 2010-06-17 Movement transformation device and valve comprising such a device
PCT/EP2010/058547 WO2010146120A1 (en) 2009-06-17 2010-06-17 Movement transformation device and valve comprising such a device
ES10723622.6T ES2468792T3 (en) 2009-06-17 2010-06-17 Movement and gate transformation device comprising said device

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FR3019255A1 (en) * 2014-04-01 2015-10-02 Valeo Sys Controle Moteur Sas EASY FASTENING VALVE WITH TORSION SPRING
FR3019254A1 (en) * 2014-04-01 2015-10-02 Valeo Sys Controle Moteur Sas VALVE WITH IMPROVED VALVE BODY AND METHOD OF MANUFACTURING SUCH VALVE
WO2015150691A1 (en) 2014-04-01 2015-10-08 Valeo Systemes De Controle Moteur Valve with guiding of a return spring acting in torsion
WO2015150692A1 (en) 2014-04-01 2015-10-08 Valeo Systemes De Controle Moteur Valve with easy assembly of a coupling in a cam
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WO2015155462A1 (en) 2014-04-08 2015-10-15 Valeo Systemes De Controle Moteur Valve comprising a reinforced tubular duct
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FR3019617A1 (en) * 2014-04-08 2015-10-09 Valeo Sys Controle Moteur Sas VALVE WITH IMPROVED FASTENING OF A GUIDE ROLLER OF A CONTROLLER
WO2017037065A1 (en) 2015-09-04 2017-03-09 Valeo Systemes De Controle Moteur Actuation device for internal combustion engine
WO2017046326A1 (en) * 2015-09-18 2017-03-23 Valeo Systemes De Controle Moteur Device for converting a pivoting movement of a pinion into a movement in translation of a slide and valve comprising such a device
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PL2443334T3 (en) 2014-08-29
US20120138831A1 (en) 2012-06-07
WO2010146120A1 (en) 2010-12-23
KR20120038970A (en) 2012-04-24
CN102483015A (en) 2012-05-30
EP2443334B1 (en) 2014-03-05
JP2012530230A (en) 2012-11-29
US8752808B2 (en) 2014-06-17
JP5536881B2 (en) 2014-07-02
ES2468792T3 (en) 2014-06-17
FR2947027B1 (en) 2011-07-15
EP2443334A1 (en) 2012-04-25
KR101699108B1 (en) 2017-01-23
CN102483015B (en) 2014-01-15

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